Device for coating pulleys with composition



Sept. 23 1924.

I J. AGERUP DEVICE FOR COATING PULLEYS WITH COMPOSITION Filed July 191923 Patented s r.

JOHN AGERUP, OF LONDON, ENGLAND.

DEVICE FOR COATING PULLEYS WITH COMPOSITION.

Application filed July 19, i

To all whom it may concern.

Be it known that I, JOHN AGERUP, a subject of the King of Great Britainand Ireland, residing at 53 Haymarket, London, S. W. 1, En land, haveinvented a Device for Coating Pulleys with Composition, of which thefollowing is a specification.

In the coating of pulleys with compositions, as for preventing beltslip, it is necessary or desirable that the material should bedistributed evenly, and in some cases at least it is essential tosuccess that the thickness of the layer should be substantiallyaccurately determined and maintained. This can be readily done in alathe before the pulleys leave the workshop but afterwards theperformance of the coating is much more difficult.

The object of the present invention is to provide a simple device whichwill enable the coating of a pulley as aforesaid to be effected in areliable and comparatively easy fashion after it has been mounted uponits shafting.

To this end the device consists broadly of a member having a strickleedge and equipped with means whereby upon the device being advancedtowards a pulley engagement is made with the peripheral margins of thelatter on the flank and circumferential surfaces in such wise as tomaintain a uniform gap between the strickle edge and pulley face whichdetermines the form of the coating in course of production.

A further feature of the invention consists in an assemblage of holderand means as referred to such as to enable pulleys of various widths tobe treated.

Another feature of the invention consists in forming a holder so that byaltering the angle at which it is held in relation to the pulley, flatas well as crown faces can be coated.

In some cases the production of the requisite layer of material upon thepulley necessitates the application of a lubricant, and a still furtherfeature of the invention consists in the provision of a strickle memberof, or having. incorporated therein, india rubber which when di ped intowater for instance is wetted uniformly, said strickle' member being sayclamped within a metal holder.

These and other features are combined in the implement of which adescription is now about to be given with the aid of the accom- 1923.Serial nacsaeos.

panying drawings which illustrate one convenient embodiment of theinvention.

Of the said drawings Fig. 1 is a perspective view of the devicecomplete. Fig. 2 is an elevation, Fig. 3 a plan and Fig. 4 a section onthe line 4-l of Fig. 2 of one member of the device. Figs. 5 and 6 areeleva tions at right angles tor one another of another member of thedevice and Fig. 7 is an undersideplan of Fig. 5.

As here shown, the instrument comprises a holder 1 having a slotted waythe entrance edges to which whilst they occupy a plane tangential to acylindrical surface when the implement is held in a position radialthereto are yet arched or curved in such plane so that as the holder istilted in one direction into a position approaching the tangential planethe slotted way rises intermediate of its length. In this manner byappropriate manipulation, the edge of the strickle means, protrudinguniformly through the slotted way can be made to sweep out over thepulley a path the surface of which is substantially flat or curved.

The holder 1 may be of metal having opposed walls 2 integral with oneanother leaving a hollow region constituting the slot ted way referredto so that a rubber or like strickle member 3 can be inserted thereinwhere it may be fastened as by screws 4.

Adapted to be clamped upon the holder 1 at varying positions, as bybinding screws 5, are a pair of blocks 6 each having a finger 7 steppedor provided with a shoulder 8 so that the holder can be applied to apulley with the fingers acting as positioning means, the said shouldersresting upon the peripheral surface of the pulley and part of thefingers engaging the flanks thereof. As will be seen the shoulders 8which determine the thickness of the coating that can be applied arecurved so that the thickness of such coating does not materially varywhen the angle at which the implement is held in relation to the pulleyis altered. If, as in the case of fast and loose pulleys, one has beencoated and the other is about to be, the finger block 6 nearest thepulley already coated is clamped near that ,end of the holder and theother block spaced at the requisite distance therefrom, this arrangementassuring that the coating of the already treated pulley shall not beinterfered with, the strickle 3 for the same reason not being extendedquite to the ends of the holder as clearly seen in Fig. l. lfhe aperture9 in each block 6 is of a width such as to afford sufficient play toenable the blocks to be adjusted upon the holder so that the fingers atevery position can be arranged in planes parallel to the plane of thepulley, the binding screws 5 being sufliciently powerful to hold I theblocks against movement when set. The curvature of the holder I havefound by experiinent maybe conveniently struck to a radius ofthirty-seven inches to deal with all Widths of pulley up to say eight ornine inches. I

What I claim is 1 1 A. device ofthe kind herein referred to, comprisinga laterally curved holding bar provided With a longitudinal slot open atone edge of" the bar, said bar being U-shaped in cross-section, and astrickle member secured in the said slot and projecting beyond the saidedge of the bar.

2; A device as set forth in claim 1, the said strickle member beingformed of india rubber material.

3; A device of the kind herein referred to, comprising a member having astrickle edge andmeans adjustable upon said menr be'r 'havingpositioning fingers adapted to en gage the peripheral margins of pulleysof different Widths on the flank and circumferential surfaces thereof,substantially as deof block members ad-aptedto slide upon the saidholder and means for clamping the same to the holder, said block membershaving stepped fingers adapted to engage the peripheral margins of apulley on the flank and circumferential surfaces thereof substantiallyas described.

Signed at London England, this of June 1923.

26th day JOHN AGER'UP.

